'Microcirculatory matters' File containing drafts of text to accompany film entitled 'Leucocyte Impaction and Erythrocyte flow in arterioles', in which the effects of dextran on circulation and aggregation of blood is considered. Also, drafts of papers entitled 'A simple method for the manufacture of perspex ear-chambers' and 'Modification of the Sandison-Clarke rabbit ear-chamber technique to allow introduction of fluids', which appear to describe ear-chamber modifications developed by Stalker for his Dextran experiments. The file is udated, but is thought to post-date 1960. ? post-1960